Improvement in water-elevators



G. B. CURTIS.

Water Elevator.

Patented Sept. 11, V1866.

UNITED STATES PATENT OEEICE.

GEORGE B. CURTIS, OF WOLOOTT, N. Y., ASSIGNOR TO P. K. BRONSON.

IMPROVEM ENT IN WATER-ELEVATORS.

Specification forming part of Letters Patent No. 58,019, dated Septemberl1, 1866.

To all whom 'it may concern:

Be it known that I, GEORGE B. CURTIS, of Wolcott, in the county of Wayneand State of New York, have invented a new and useful Improvement inWater-Elevators 5 and I do hereby declare that the following is a full,clear, and exact description thereof, reference being had to theaccompanying drawings, making part of this specification, in which-Figure l is a front elevation of the windlass and its appurtenances,theplate a of the hanger-jaw J being broken away to show the V- shapedhead h of the locking-bolt. Fig. 2 is a transverse section taken in thedirection of the red line o in Fig. l.

Similar letters indicate like parts.

This invention belongs to that class of water-elevators in which twoself-dumpin g buckets are employed; and its nature consists in s0constructing and arranging the tilting or shifting lever as to avoid theuse of any auxiliary lever; and also in substituting a spiral spring forthe strap-spring heretofore used for securing the proper adjustment ofthe parts.

To enable others to make and use my invention I will describe it morefully.

A represents the top ofthe curb-frame; B, the cross-bar, to which thehanger-jaw J is bolted. I use the double spools S, intermediate gear G,and feathered clutch O, ordinarily employed in this class ofwater-elevators but I extend the arms E of the tilting lever D, as shownin Fig. 1, so that the dumping-buckets shall strike them directly,instead of using two sets of arms, as heretofore done. vrlhe fork of thelever at b is spread so as to permit that portion of the lever to swingpast the center before operating upon the clutch O, whereby the centerof the traverse-pulley o is carried past the point of the V-shaped headh of the spring-bolt I, and hence the change of the sliding coupling orclutch is effected by the spring s, and that instantaneously. The leverD is pivoted to the hanger-jaw J at e, and the pulley o is pivoted tothe lever below its axis. The square opening through the stock or jaw Jfor head of the spring-bolt I to work in may be cored out, and the holein the foot-plate f, for the lower end of the bolt, may also be cored,if desired, or it may be drilled.

One end of the spring s rests against the head h of the bolt I, and theother upon the plate f.

It will be seen that this construction and arrangement of 'the partsconstitute a much simpler and cheaper device, and also a much moredurable one than those in common use for the same purpose.

Vhat I claim as my invention, anddesire to secure by Letters Patent, is

l. The arrangement, in double-bucket water-elevators, substantially asshown, of the single tilting lever D and its spring-bolt I, incombination with the sliding clutch O, for the purposes set forth. i 2.The spiral spring s and its locking-bolt I, in combination with thetilting bar D, substantially as and for the purpose herein shown anddescribed.

eno. s. ounfris.

